They played out a goalless draw with the Cods at home, while Macclesfield took apart Rochdale - with Matthew Tipton hitting all three - to move level on points with the Swans.
Shrewsbury continued their climb away from the relegation zone with a 4-2 home win over Kidderminster, but were stunned when the Harriers took a two-goal lead.
But they stormed back to move up to 19th in the League table, bottom club Cambridge lost 2-1 at Lincoln.
Southend came from a goal behind to win 2-1 at fellow play-off hopefuls Northampton.
The seventh-placed Cobblers took the lead against the Shrimpers when Martin Smith found the breakthrough after seven minutes.
But Adam Barrett brought his side level with 13 minutes left before hitting the winner in injury time.
Steve Claridge hit an 18-yard header for Wycombe, to earn them a point at home to Darlington who had taken the lead two minutes earlier through CLide Wjinhard.
Tommy Mooney hit the winning goal for Oxford against Cheltenham, with Juan Pablo Ramoni - on-loan from Argentininan giants River Plate - providing the key pass on his debut.